SolitaryThinker
b2d55a7ba0
Replace the re-export stubs with real vendored copies of the fastvideo modeling
+ layer + supporting infra, for the kept diffusion models (wan21, wan_causal,
ltx2, flux2, matrixgame2). v2 now imports ZERO `fastvideo.*` — it is
self-contained. (bagel/qwen_omni load from vllm_omni, an external pkg, not
fastvideo; cosmos3's load_id was already dangling — both out of scope here.)
Vendored (cp + `sed fastvideo. -> v2.`):
- models/ the 5 models' nn.Module dits/vaes/encoders/audio/upsamplers + the
component loader/ + the lazy class registry (other families' rows are
dormant/lazy — only the 5 resolve).
- layers/ attention/ platforms/ distributed/ configs/ logging_utils/ hooks/
third_party/pynvml + top-level forward_context/fastvideo_args/envs/logger/
utils/version — copied verbatim (layers et al. 'as is').
- api/ slimmed to schema + results (the VideoGenerator's config dataclasses);
the fastvideo parser/presets/overrides (which pull the pipeline runtime) are
intentionally NOT vendored — v2 has its own runtime/loop.
Decoupling surgery (cut the loader's coupling to the fastvideo runtime):
- configs/pipeline_registry.py (vendored from fastvideo/registry.py, renamed to
avoid colliding with v2/registry.py): dropped the _register_presets() auto-call
and matrixgame3 (removed model); config-class resolution preserved.
- configs/pipelines/__init__.py: dropped the registry back-edge (fixes an import
cycle) — base.py imports the registry lazily where used.
- torch_backend: load_component now uses v2.models.loader.
The only remaining external 'fastvideo*' refs are `fastvideo_kernel` (the
separate optional CUDA-kernel pkg for sparse/MoBA attention) — guarded; the dense
TORCH_SDPA path v2 uses never imports it.
Vendored subtrees added to the pre-commit exclude (faithful copies, mirroring the
existing fastvideo/models exclusion — not re-linted, to stay re-syncable).
Verified: grep finds zero fastvideo-package imports in v2/; Wan2.1 T2V on H100 is
BIT-IDENTICAL to the fastvideo-backed path (same .npy SHA256, byte-for-byte); CPU
mini 156 (154 passed + 2 env-skipped on x86, torch present). Backup: branch v2_backup.
17 lines
460 B
Python
17 lines
460 B
Python
# SPDX-License-Identifier: Apache-2.0
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from __future__ import annotations
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class ConfigValidationError(ValueError):
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"""Validation error that keeps track of the nested config path."""
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def __init__(self, path: str, message: str):
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self.path = path
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self.message = message
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super().__init__(str(self))
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def __str__(self) -> str:
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if self.path:
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return f"{self.path}: {self.message}"
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return self.message
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